Improvement in looms



` thereof.

rFicn.

ATENT ELISHA ROBBINS, OF MILFORI), MASSACHUSETTS.

IMPROVEMENT IN Looms.

Specication forming part of Letters Patent No. 35,3911, dated May 27, 1862.

To all whom, t nty con/cern;

Be it known that I, ELIsHA RoBB1Ns,aciti zen of the United States of America,` and a resident of Milford, in the county of forcester and State of Massachusetts, have made a new and useful invention of certain Improvementsin Looms for Veaving; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure l is a top view, Figs. 2 and 3 front and rear side elevations, and Fig. 4 a longitudinal section, of a shuttle-box and part of the lay of a loom as provided with my invention. Fig. 5 is a horizontal section of the shuttle-box, the bnder,'and stopping-j aws, to be hereinafter explained. l

The nature of my invention or improvements consistsas follows: First, in the application or arrangement of a stopping springjaw with the binder and shuttle-box, and so as to arrest oroperate with the picker or its staff,`as hereinafter described; second, in the combination and arrangement of an auxiliary spring-jaw with the above-mentioned binder and spring stopping-jaw; third, in an improved mechanism for operating the shuttle and picker. f

In the drawings, A denotes a shuttle-box projecting from, the sword B, and race-beam C of the lay ot' a loom. In the front side of such shuttle-box there is the usual binderopening and a shuttle-binder, B', this latter being so applied to the opening as to be capable ot' turning horizontally on a pin, ct, which goes through the binder near the outerend The binder is to operate with the apparatus, which is generally used with it for stopping the loom in case the shuttle should not enter the shuttle-box while being driven across the race-beam and toward such box. A portipn of this apparatus is exhibited at b. The binder as commonly made is formed on its inner side with a protecting-plate of metal. ln the place of this plateI apply to the binder what not `only serves the purpose of such plate, but anotheiL-viz, that ot so arresting the shuttle at or near the termination of its course and under any sudden increase of an accident which s'very liable to happen when the picker or its staff is driven against the outer end of the shuttle-boxwith great force, and the pressure and friction of the binder are not sufficient to prevent such an impulsion of the shuttle. The binder is generally so arranged as to arrest the shuttle under a given speed of the loom; but whenever the speed is suddenly increased, as frequently occurs, the shuttle will not be held sufficiently by the binder, but will be driven hard against the picker and so strongly against the outer portion or end of the shuttle-box as to cause the cop to be either entirely or, partially thrown off the spindle, or to be so deranged thereon as to create a considerable waste of the yarn.

My invention is intended to avoid such an accident, and for this purpose I arrange and combine with the binder, and so as to extend beyond its outer end or into the shuttle-box "and in the curved form, as shown at c in Fig.

5, -a stopping spring-jaw. To the opposite side oi the shuttle-box I afiix another or auxiliary spring-jaw, (l, the arrangementof such jaws being as shown in Fig. 5. The first-mentioned jaw may be an extension of the faceplate oit' the binder. Furthermore, I affix on the top ot' the shuttle-box two adjustable and parallel guides or straight bars, e e, each being provided with transverse slots and setscrews, as shown at j f'f, in order that the bars may be adjusted soas to have their inner edges parallel and either in range oi' the racebeam or at such an obtuse angle therewith as will cause the picker to direct the shuttle to properly run across thebeam while the shuttie may be in the act of being expelled from the shuttle-box. The picker D, which is fastened to the picker-stati' E, is to have a shape as shown in side view in Fig. -that is, it is to be constructed with notches or grooves g g, arranged in its opposite edges and so as to receive and travell on'the guide-bars e e, re-

spectively, while the picker-statt' near its lower end is placed and made to rest in a forked radius-arm, F, extended from a socketpiece, G, which projects from the lay-sword B.

A spring, Il, connected at one end to the sword B and at its other end to a strap, I, which passes underneath and is fastened to the lower part of the picker-staff, operates not only to maintain the staff in connection with the radius-arm, but the latter in connection with its socket-piece G.

Fig. 7 is a top View of the said radius-arm, while Figs. S and 9 are top and side views of its Socket-piece. The spring and the radiusarm co-operate with the picker-Statt, keep it in place, and allow it to move back and forth and up and down in order that the picker may be caused by the guides e e and the notches g g to travel in a horizontal and straight path.

Many advantages in the working of a loom are attained by niy invention. lt not only saves much wear of the Shuttle, but prevents the shuttle from flying upward out of the box. It makes a very even Selva-ge and face on the cloth and causes the loom to operate with much ease and little noise, comparatively speaking. The guides direct the picker-statt properly between the stop-jaws or against that one which is applied to the binder.

The stop-jaw, combined directly with or be ing extended from the binder, causes Such binder, bythe leverage exerted upon it when the picker-statt meets the stop-j aw, to bind on the shuttle with increased effect.

I do not claim a stopping-spring placed in the outer end of the shuttle-box; but

l. The application and arrangement of the spring stop-jaw c with the binder, and S0 as to extend into the shuttle-box and operate with the picker or its Sta-ft',substantially as aboveV Specied.

2. rlhe combination and arrangement of the auxiliary Spring-jaw (l with the spring-jaw c when arranged with and extended from the binder, as speciiied.

3. The combination and arrangement of the adjustable guides e @with the shuttle-box, the picker, and its staff, as explained, when the said picker is made substantially as described.

4. The combination and arrangement of the forked radius-arm F, the socket-piece G, and

the spring H, as applied to the picker-staff and lay, and so as to operate therewith, suhstantially as speciied.

ELISHA ROBBINS.

lVitnesses:

J. R. BAMPTON, F. P. HALE, Jr. 

